How To Fix CMPERS128 - Internal error: Conversion of internal to external format failed

CMPERS128 - Overview

• Message type: E = Error

• Message class: CMPERS - Personalization for Web Applications

• Message number: 128

• Message text: Internal error: Conversion of internal to external format failed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CMPERS128 - Internal error: Conversion of internal to external format failed ?

  The SAP error message CMPERS128, which states "Internal error: Conversion of internal to external format failed," typically occurs during the conversion of data formats within the SAP system. This error can arise in various contexts, such as when dealing with personnel data, date formats, or other data conversions.
  Causes:
  
  Data Format Issues: The internal representation of data does not match the expected external format. This can happen if the data is corrupted or if there are inconsistencies in the data types.
  Configuration Errors: Incorrect configuration settings in the system can lead to issues in data conversion.
  Missing or Incorrect Data: If required fields are missing or contain invalid data, the conversion process may fail.
  Custom Code or Enhancements: If there are custom programs or enhancements that manipulate data, they may not handle conversions correctly.
  System Bugs: Occasionally, this error can be caused by bugs in the SAP system itself, particularly if you are using an older